3D Pen Filament Refills 1.75mm PLA - mega Pack of 21 Different Vibrant Colors - 20 feet Each for a Total of 420 Linear feet.

I have been 3D pringting for a few years now and every now and again you get some bad filament. Some of the rolls came brittle and broken completely (see photos). This usually means that the filament is old or of poor quality. The other filament rolls that were ok seem like they are decent, but I have yet to print with them yet. Will update once I put it in the printer and go.I would not recommend this product since some of the rolls were brittle and broken on arrival. Look elsewhere.The reason for the 2 stars vs 1 star is that at least some of the filament is usable.

This plastic takes longer to harden and leaves more small plastic strings when used in my 3D pen. I'll be switching back to the other type of plastic, but I won't toss/send this back. It's a good value and great assortment of colors, and I'll likely use all of it.

I'm happy with this purchase. I wanted extra filament for my 3D pen which I also bought recently. This was reasonably priced and is a nice variety of color. I will definitely buy again. It came well-packaged and works the way it's supposed. to.

Some of the colors were fine. Some of them were old and brittle and therefore unusable in my 3d pen.

Great product. No jamming issues. vibrant colors. Will be purchasing again.

thanks

Easy to work with; holds shape well.

These worked really well in my 3D pen. There was a good amount of each color and lots of colors.